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Related papers: Ubc/Laval 2.7-Meter Liquid Mirror Telescope

200 papers

We introduce the Dichroic-Mirror Camera (DMC), an instrument developed at the University of Tokyo which is capable of performing simultaneous imaging in fifteen bands. The main feature of the DMC is the dichroic mirrors, which split…

MAGIC comprises two 17m diameter IACTs to be operated in stereo mode. Currently we are commissioning the second telescope, MAGIC II. The camera of the second telescope has been equipped with 1039 pixels of 0.1-degree diameter. Always seven…

High Energy Astrophysical Phenomena · Physics 2019-08-13 D. Borla Tridon , F. Goebel , D. Fink , W. Haberer , J. Hose , C. C. Hsu , T. Jogler , R. Mirzoyan , R. Orito , O. Reimann , P. Sawallisch , J. Schlammer , T. Schweizer , B. Steinke , M. Teshima

Liquid mirror telescopes are of interest to Astronomy because of their very low capital and operating costs. Low cost has a potentially revolutionary impact since it allows one to dedicate a large telescope to a narrowly focused project…

Astrophysics · Physics 2007-05-23 Ermanno F. Borra

The Cherenkov Telescope Array (CTA) observatory, will be deployed over two sites in the two hemispheres. Both sites will be equipped with four Large Size Telescopes (LSTs), which are crucial to achieve the science goals of CTA in the 20-200…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 J. Cortina , M. Teshima

We present the global optical photometry of 246 galaxies in the Local Volume Legacy (LVL) survey. The full volume-limited sample consists of 258 nearby (D < 11 Mpc) galaxies whose absolute B-band magnitude span a range of -9.6 < M_B < -20.7…

If uncorrected, the Coriolis force due to the rotation of the Earth causes significant aberration of images produced by large liquid-mirror telescopes. We show that this problem can be eliminated by a fixed compensating tilt of the…

Astrophysics · Physics 2009-11-07 Paul Hickson

We describe a high speed time-series CCD photometer for the prime focus of the 82-in (2.1 m) telescope at McDonald Observatory, and summarize the observational results we have obtained since it was placed into regular use in February, 2002.…

Astrophysics · Physics 2009-11-07 R. E. Nather , Anjum. S. Mukadam

We present the first results from the ALHAMBRA survey. ALHAMBRA will cover a relatively wide area (4 square degrees) using a purposely-designed set of 20 medium-band filters, down to an homogeneous magnitude limit AB~25 in most of them,…

A photometric and proper motion survey has been obtained in 2 directions at intermediate latitude: ($l=167.5^\circ$, $b=47.4^\circ$; $\alpha_{2000}=9^h41^m26^s$,$\delta_{2000}=+49^\circ53'27''$) and ($l=278^\circ$, $b=47^\circ$;…

Astrophysics · Physics 2007-05-23 D. K. Ojha , O. Bienayme , V. Mohan , A. C. Robin

Cherenkov Telescopes are equipped with optical dishes of large diameter -- in general based on segmented mirrors -- with typical angular resolution of a few arc-minutes. To evaluate the mirror's quality specific metrological systems are…

Instrumentation and Methods for Astrophysics · Physics 2016-01-11 Rodolfo Canestrari , Enrico Giro , Giacomo Bonnoli , Giancarlo Farisato , Luigi Lessio , Gabriele Rodeghiero , Rossella Spiga , Giorgio Toso , Giovanni Pareschi

Adaptive optics to correct current telescopes over wide fields, or future very large telescopes over even narrow fields, will require real-time wavefront measurements made with a constellation of laser beacons. Here we report the first such…

Astrophysics · Physics 2009-11-13 M. Lloyd-Hart , C. Baranec , N. M. Milton , T. Stalcup , M. Snyder , N. Putnam , J. R. P. Angel

The NASA Orbital Debris Observatory (NODO) astronomical survey uses a transit 3-m liquid mirror telescope to observe a strip of sky in 20 narrow-band filters. In this article, we analyze a subset of data from the 1996 observing season. The…

Astrophysics · Physics 2016-08-30 R. Cabanac , E. F. Borra , M. Beauchemin

Cavity optomechanical devices can be made to have good compatibility with optical fiber technology by utilizing fiber-based waveguides and cavities and can be used in high-performance optical sensor applications. Such optomechanical…

Optics · Physics 2024-01-24 Motoki Asano , Hiroshi Yamaguchi , Hajime Okamoto

The Single-Mirror Small-Size Telescope (SST-1M) is an Imaging Atmospheric Cherenkov Telescope designed for detecting very high-energy gamma rays. With a compact design achieved through the adoption of silicon-photomultiplier pixels and a…

Nestled in the mountains of Northern India, is a 4-metre rotating dish of liquid mercury. Over a 10-year period, the International Liquid Mirror Telescope (ILMT) will survey 117 square degrees of sky, to study the astrometric and…

We present the technical design, construction and testing of the Colibri telescope array at Elginfield Observatory near London, Ontario, Canada. Three 50-cm telescopes are arranged in a triangular array and are separated by 110-160 metres.…

Instrumentation and Methods for Astrophysics · Physics 2022-10-13 M. J. Mazur , S. Metchev , R. A. Brown , R. Gupta , R. Bloch , T. Mills , E. Pass

A new design is proposed for large (up to 6-m) liquid mirror containers. The design uses Kevlar, foam and aluminum, as in previous designs, but with a different configuration that makes the container lighter, stronger and more rigid. The…

Astrophysics · Physics 2009-11-10 Robert Content

We present high-resolution imaging of a sample of 10 SCUBA submillimetre galaxies, obtained using the ACS camera on the Hubble Space Telescope. We find that the majority show compact, disturbed morphologies. Using quantitative morphological…

Astrophysics · Physics 2007-05-23 O. Almaini , J. S. Dunlop , C. J. Conselice , T. A. Targett , R. J. Mclure

Optical resonators are increasingly important tools in science and technology. Their applications range from laser physics, atomic clocks, molecular spectroscopy, and single-photon generation to the detection, trapping and cooling of atoms…

Diffraction limited 30m class telescopes will play an important role in gravitational lensing studies, coming online in approximately 2015. As imaging telescopes they will complement the ~6m JWST, probing to smaller angular scales in…

Astrophysics · Physics 2009-11-10 R. G. Carlberg